Brazilian Teak any good for making a backed longbow?
Posted: Sat Jun 04, 2016 6:22 pm
Just saw an ad for Masters now supplying what they call Brazilian teak decking.
Does anyone know if it's the same as what's listed on the wood database http://www.wood-database.com/lumber-ide ... ds/cumaru/
Is it any good for bow making? Sorry, but the numbers are pretty much meaningless to me.
Apparently very dense which is promising but the grain is interweaving which is not good?
Specs below.
Cumaru (Dipteryx odorata)
Common Name(s): Cumaru, Brazilian Teak
Scientific Name: Dipteryx odorata
Distribution: Northern South America
Tree Size: 130-160 ft (40-50 m) tall, 3-5 ft (1-1.5 m) trunk diameter
Average Dried Weight: 68 lbs/ft3 (1,085 kg/m3)
Specific Gravity (Basic, 12% MC): .86, 1.09
Janka Hardness: 3,330 lbf (14,800 N)
Modulus of Rupture: 25,390 lbf/in2 (175.1 MPa)
Elastic Modulus: 3,237,000 lbf/in2 (22.33 GPa)
Crushing Strength: 13,850 lbf/in2 (95.5 MPa)
Shrinkage: Radial: 5.3%, Tangential: 7.7%, Volumetric: 12.6%, T/R Ratio: 1.5
Cheers,
Bormin
Does anyone know if it's the same as what's listed on the wood database http://www.wood-database.com/lumber-ide ... ds/cumaru/
Is it any good for bow making? Sorry, but the numbers are pretty much meaningless to me.
Apparently very dense which is promising but the grain is interweaving which is not good?
Specs below.
Cumaru (Dipteryx odorata)
Common Name(s): Cumaru, Brazilian Teak
Scientific Name: Dipteryx odorata
Distribution: Northern South America
Tree Size: 130-160 ft (40-50 m) tall, 3-5 ft (1-1.5 m) trunk diameter
Average Dried Weight: 68 lbs/ft3 (1,085 kg/m3)
Specific Gravity (Basic, 12% MC): .86, 1.09
Janka Hardness: 3,330 lbf (14,800 N)
Modulus of Rupture: 25,390 lbf/in2 (175.1 MPa)
Elastic Modulus: 3,237,000 lbf/in2 (22.33 GPa)
Crushing Strength: 13,850 lbf/in2 (95.5 MPa)
Shrinkage: Radial: 5.3%, Tangential: 7.7%, Volumetric: 12.6%, T/R Ratio: 1.5
Cheers,
Bormin